/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-SP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe010_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-22 02:14:06,568 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-22 02:14:06,572 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-22 02:14:06,613 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-22 02:14:06,614 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-22 02:14:06,624 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-22 02:14:06,626 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-22 02:14:06,628 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-22 02:14:06,631 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-22 02:14:06,633 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-22 02:14:06,634 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-22 02:14:06,638 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-22 02:14:06,638 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-22 02:14:06,641 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-22 02:14:06,643 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-22 02:14:06,645 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-22 02:14:06,647 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-22 02:14:06,648 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-22 02:14:06,650 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-22 02:14:06,656 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-22 02:14:06,659 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-22 02:14:06,660 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-22 02:14:06,662 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-22 02:14:06,663 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-22 02:14:06,669 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-22 02:14:06,669 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-22 02:14:06,670 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-22 02:14:06,672 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-22 02:14:06,672 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-22 02:14:06,674 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-22 02:14:06,675 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-22 02:14:06,676 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-22 02:14:06,676 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-22 02:14:06,677 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-22 02:14:06,678 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-22 02:14:06,678 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-22 02:14:06,679 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-22 02:14:06,679 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-22 02:14:06,679 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-22 02:14:06,681 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-22 02:14:06,682 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-22 02:14:06,683 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-SP.epf [2020-10-22 02:14:06,724 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-22 02:14:06,725 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-22 02:14:06,727 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-22 02:14:06,727 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-22 02:14:06,727 INFO L138 SettingsManager]: * Use SBE=true [2020-10-22 02:14:06,728 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-22 02:14:06,728 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-22 02:14:06,729 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-22 02:14:06,729 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-22 02:14:06,729 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-22 02:14:06,730 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-22 02:14:06,730 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-22 02:14:06,731 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-22 02:14:06,731 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-22 02:14:06,731 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-22 02:14:06,731 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-22 02:14:06,731 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-22 02:14:06,732 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-22 02:14:06,732 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-22 02:14:06,732 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-22 02:14:06,732 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-22 02:14:06,732 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-22 02:14:06,733 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-22 02:14:06,733 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-22 02:14:06,733 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-22 02:14:06,733 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-22 02:14:06,733 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-22 02:14:06,734 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-22 02:14:06,734 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-22 02:14:06,734 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-22 02:14:06,734 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-22 02:14:07,060 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-22 02:14:07,077 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-22 02:14:07,081 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-22 02:14:07,083 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-22 02:14:07,083 INFO L275 PluginConnector]: CDTParser initialized [2020-10-22 02:14:07,084 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe010_tso.oepc.i [2020-10-22 02:14:07,165 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8767217e/f5f7817133634c488f9db77ccfdfd1f8/FLAG9e2ac4dfe [2020-10-22 02:14:07,720 INFO L306 CDTParser]: Found 1 translation units. [2020-10-22 02:14:07,721 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe010_tso.oepc.i [2020-10-22 02:14:07,736 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8767217e/f5f7817133634c488f9db77ccfdfd1f8/FLAG9e2ac4dfe [2020-10-22 02:14:07,999 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8767217e/f5f7817133634c488f9db77ccfdfd1f8 [2020-10-22 02:14:08,008 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-22 02:14:08,013 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-22 02:14:08,014 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-22 02:14:08,015 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-22 02:14:08,018 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-22 02:14:08,019 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 02:14:08" (1/1) ... [2020-10-22 02:14:08,022 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@745ca6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:14:08, skipping insertion in model container [2020-10-22 02:14:08,022 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 02:14:08" (1/1) ... [2020-10-22 02:14:08,030 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-22 02:14:08,089 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-22 02:14:08,598 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 02:14:08,612 INFO L203 MainTranslator]: Completed pre-run [2020-10-22 02:14:08,683 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 02:14:08,763 INFO L208 MainTranslator]: Completed translation [2020-10-22 02:14:08,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:14:08 WrapperNode [2020-10-22 02:14:08,764 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-22 02:14:08,765 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-22 02:14:08,765 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-22 02:14:08,765 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-22 02:14:08,775 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:14:08" (1/1) ... [2020-10-22 02:14:08,791 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:14:08" (1/1) ... [2020-10-22 02:14:08,813 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-22 02:14:08,813 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-22 02:14:08,813 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-22 02:14:08,814 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-22 02:14:08,822 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:14:08" (1/1) ... [2020-10-22 02:14:08,823 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:14:08" (1/1) ... [2020-10-22 02:14:08,825 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:14:08" (1/1) ... [2020-10-22 02:14:08,826 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:14:08" (1/1) ... [2020-10-22 02:14:08,834 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:14:08" (1/1) ... [2020-10-22 02:14:08,839 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:14:08" (1/1) ... [2020-10-22 02:14:08,842 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:14:08" (1/1) ... [2020-10-22 02:14:08,848 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-22 02:14:08,851 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-22 02:14:08,851 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-22 02:14:08,852 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-22 02:14:08,856 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:14:08" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-22 02:14:08,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-22 02:14:08,932 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-22 02:14:08,932 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-22 02:14:08,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-22 02:14:08,933 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-22 02:14:08,933 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-22 02:14:08,934 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-22 02:14:08,935 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-22 02:14:08,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-22 02:14:08,936 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-22 02:14:08,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-22 02:14:08,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-22 02:14:08,938 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-22 02:14:09,260 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-22 02:14:09,261 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-22 02:14:09,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 02:14:09 BoogieIcfgContainer [2020-10-22 02:14:09,264 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-22 02:14:09,266 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-22 02:14:09,266 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-22 02:14:09,270 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-22 02:14:09,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 02:14:08" (1/3) ... [2020-10-22 02:14:09,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3824387c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 02:14:09, skipping insertion in model container [2020-10-22 02:14:09,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:14:08" (2/3) ... [2020-10-22 02:14:09,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3824387c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 02:14:09, skipping insertion in model container [2020-10-22 02:14:09,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 02:14:09" (3/3) ... [2020-10-22 02:14:09,275 INFO L111 eAbstractionObserver]: Analyzing ICFG safe010_tso.oepc.i [2020-10-22 02:14:09,289 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-22 02:14:09,289 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-22 02:14:09,298 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-22 02:14:09,300 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-22 02:14:09,354 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:09,354 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:09,354 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:09,355 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:09,355 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:09,356 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:09,357 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:09,357 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:09,357 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:09,357 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:09,358 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:09,358 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:09,366 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:09,366 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:09,366 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:09,367 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:09,373 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:09,373 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:09,373 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:09,374 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:14:09,381 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-22 02:14:09,395 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-22 02:14:09,416 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-22 02:14:09,417 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-22 02:14:09,417 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-22 02:14:09,417 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-22 02:14:09,417 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-22 02:14:09,417 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-22 02:14:09,418 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-22 02:14:09,418 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-22 02:14:09,433 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-22 02:14:09,434 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 64 transitions, 138 flow [2020-10-22 02:14:09,437 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 64 transitions, 138 flow [2020-10-22 02:14:09,439 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 68 places, 64 transitions, 138 flow [2020-10-22 02:14:09,485 INFO L129 PetriNetUnfolder]: 3/62 cut-off events. [2020-10-22 02:14:09,486 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-22 02:14:09,491 INFO L80 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 62 events. 3/62 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. [2020-10-22 02:14:09,493 INFO L116 LiptonReduction]: Number of co-enabled transitions 792 [2020-10-22 02:14:11,053 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-10-22 02:14:11,205 INFO L131 LiptonReduction]: Checked pairs total: 1636 [2020-10-22 02:14:11,205 INFO L133 LiptonReduction]: Total number of compositions: 67 [2020-10-22 02:14:11,217 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 15 transitions, 40 flow [2020-10-22 02:14:11,235 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 74 states. [2020-10-22 02:14:11,237 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-10-22 02:14:11,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-22 02:14:11,263 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:14:11,267 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-22 02:14:11,267 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:14:11,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:14:11,273 INFO L82 PathProgramCache]: Analyzing trace with hash -1312316534, now seen corresponding path program 1 times [2020-10-22 02:14:11,298 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:14:11,298 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343664747] [2020-10-22 02:14:11,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:14:11,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:14:11,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:14:11,544 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343664747] [2020-10-22 02:14:11,545 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:14:11,546 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-22 02:14:11,546 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [875747260] [2020-10-22 02:14:11,547 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:14:11,550 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:14:11,562 INFO L252 McrAutomatonBuilder]: Finished intersection with 7 states and 6 transitions. [2020-10-22 02:14:11,563 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:14:11,566 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:14:11,566 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 02:14:11,567 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:14:11,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 02:14:11,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:14:11,581 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 3 states. [2020-10-22 02:14:11,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:14:11,617 INFO L93 Difference]: Finished difference Result 72 states and 154 transitions. [2020-10-22 02:14:11,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 02:14:11,618 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-10-22 02:14:11,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:14:11,627 INFO L225 Difference]: With dead ends: 72 [2020-10-22 02:14:11,627 INFO L226 Difference]: Without dead ends: 56 [2020-10-22 02:14:11,629 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:14:11,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-10-22 02:14:11,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2020-10-22 02:14:11,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-10-22 02:14:11,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 114 transitions. [2020-10-22 02:14:11,671 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 114 transitions. Word has length 6 [2020-10-22 02:14:11,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:14:11,672 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 114 transitions. [2020-10-22 02:14:11,672 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 02:14:11,672 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 114 transitions. [2020-10-22 02:14:11,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-22 02:14:11,673 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:14:11,674 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:14:11,674 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-22 02:14:11,674 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:14:11,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:14:11,675 INFO L82 PathProgramCache]: Analyzing trace with hash -2038978314, now seen corresponding path program 1 times [2020-10-22 02:14:11,680 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:14:11,681 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220807106] [2020-10-22 02:14:11,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:14:11,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:14:11,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:14:11,739 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220807106] [2020-10-22 02:14:11,739 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:14:11,740 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-22 02:14:11,740 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1358874223] [2020-10-22 02:14:11,740 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:14:11,741 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:14:11,744 INFO L252 McrAutomatonBuilder]: Finished intersection with 11 states and 13 transitions. [2020-10-22 02:14:11,744 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:14:11,796 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:14:11,798 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 02:14:11,798 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:14:11,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 02:14:11,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:14:11,799 INFO L87 Difference]: Start difference. First operand 56 states and 114 transitions. Second operand 3 states. [2020-10-22 02:14:11,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:14:11,806 INFO L93 Difference]: Finished difference Result 53 states and 106 transitions. [2020-10-22 02:14:11,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 02:14:11,807 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-10-22 02:14:11,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:14:11,808 INFO L225 Difference]: With dead ends: 53 [2020-10-22 02:14:11,808 INFO L226 Difference]: Without dead ends: 53 [2020-10-22 02:14:11,809 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:14:11,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-10-22 02:14:11,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2020-10-22 02:14:11,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-10-22 02:14:11,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 106 transitions. [2020-10-22 02:14:11,818 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 106 transitions. Word has length 7 [2020-10-22 02:14:11,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:14:11,818 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 106 transitions. [2020-10-22 02:14:11,819 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 02:14:11,819 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 106 transitions. [2020-10-22 02:14:11,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-22 02:14:11,819 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:14:11,820 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:14:11,820 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-22 02:14:11,820 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:14:11,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:14:11,821 INFO L82 PathProgramCache]: Analyzing trace with hash 1216180213, now seen corresponding path program 1 times [2020-10-22 02:14:11,822 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:14:11,822 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883329641] [2020-10-22 02:14:11,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:14:11,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:14:11,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:14:11,901 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883329641] [2020-10-22 02:14:11,902 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:14:11,903 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 02:14:11,903 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1136215191] [2020-10-22 02:14:11,904 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:14:11,905 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:14:11,910 INFO L252 McrAutomatonBuilder]: Finished intersection with 15 states and 21 transitions. [2020-10-22 02:14:11,910 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:14:12,005 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:14:12,006 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 02:14:12,006 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:14:12,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 02:14:12,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 02:14:12,007 INFO L87 Difference]: Start difference. First operand 53 states and 106 transitions. Second operand 4 states. [2020-10-22 02:14:12,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:14:12,032 INFO L93 Difference]: Finished difference Result 60 states and 113 transitions. [2020-10-22 02:14:12,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-22 02:14:12,033 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-10-22 02:14:12,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:14:12,034 INFO L225 Difference]: With dead ends: 60 [2020-10-22 02:14:12,034 INFO L226 Difference]: Without dead ends: 36 [2020-10-22 02:14:12,034 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:14:12,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-22 02:14:12,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-10-22 02:14:12,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-22 02:14:12,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 63 transitions. [2020-10-22 02:14:12,040 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 63 transitions. Word has length 8 [2020-10-22 02:14:12,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:14:12,041 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 63 transitions. [2020-10-22 02:14:12,041 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 02:14:12,041 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 63 transitions. [2020-10-22 02:14:12,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-22 02:14:12,041 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:14:12,042 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:14:12,042 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-22 02:14:12,042 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:14:12,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:14:12,043 INFO L82 PathProgramCache]: Analyzing trace with hash -953134969, now seen corresponding path program 1 times [2020-10-22 02:14:12,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:14:12,044 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372141905] [2020-10-22 02:14:12,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:14:12,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:14:12,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:14:12,114 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372141905] [2020-10-22 02:14:12,115 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:14:12,115 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 02:14:12,115 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1597623483] [2020-10-22 02:14:12,115 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:14:12,116 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:14:12,118 INFO L252 McrAutomatonBuilder]: Finished intersection with 17 states and 23 transitions. [2020-10-22 02:14:12,118 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:14:12,144 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-22 02:14:12,244 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [710#(not (= 2 ~__unbuffered_cnt~0))] [2020-10-22 02:14:12,245 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 02:14:12,245 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:14:12,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 02:14:12,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:14:12,246 INFO L87 Difference]: Start difference. First operand 36 states and 63 transitions. Second operand 5 states. [2020-10-22 02:14:12,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:14:12,313 INFO L93 Difference]: Finished difference Result 32 states and 51 transitions. [2020-10-22 02:14:12,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-22 02:14:12,314 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-10-22 02:14:12,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:14:12,315 INFO L225 Difference]: With dead ends: 32 [2020-10-22 02:14:12,315 INFO L226 Difference]: Without dead ends: 22 [2020-10-22 02:14:12,315 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-22 02:14:12,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-10-22 02:14:12,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-10-22 02:14:12,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-10-22 02:14:12,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 30 transitions. [2020-10-22 02:14:12,320 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 30 transitions. Word has length 9 [2020-10-22 02:14:12,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:14:12,320 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 30 transitions. [2020-10-22 02:14:12,320 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 02:14:12,320 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions. [2020-10-22 02:14:12,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-22 02:14:12,321 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:14:12,321 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:14:12,322 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-22 02:14:12,322 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:14:12,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:14:12,322 INFO L82 PathProgramCache]: Analyzing trace with hash 1480685439, now seen corresponding path program 1 times [2020-10-22 02:14:12,323 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:14:12,323 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042977522] [2020-10-22 02:14:12,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:14:12,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:14:12,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:14:12,361 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042977522] [2020-10-22 02:14:12,361 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:14:12,361 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 02:14:12,361 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1213496723] [2020-10-22 02:14:12,361 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:14:12,363 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:14:12,365 INFO L252 McrAutomatonBuilder]: Finished intersection with 21 states and 28 transitions. [2020-10-22 02:14:12,365 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:14:12,377 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:14:12,378 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 02:14:12,378 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:14:12,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 02:14:12,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:14:12,379 INFO L87 Difference]: Start difference. First operand 22 states and 30 transitions. Second operand 3 states. [2020-10-22 02:14:12,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:14:12,384 INFO L93 Difference]: Finished difference Result 21 states and 29 transitions. [2020-10-22 02:14:12,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 02:14:12,385 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-22 02:14:12,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:14:12,385 INFO L225 Difference]: With dead ends: 21 [2020-10-22 02:14:12,385 INFO L226 Difference]: Without dead ends: 0 [2020-10-22 02:14:12,386 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:14:12,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-22 02:14:12,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-22 02:14:12,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-22 02:14:12,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-22 02:14:12,387 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2020-10-22 02:14:12,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:14:12,387 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-22 02:14:12,387 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 02:14:12,387 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-22 02:14:12,387 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-22 02:14:12,388 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-22 02:14:12,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 02:14:12 BasicIcfg [2020-10-22 02:14:12,391 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-22 02:14:12,393 INFO L168 Benchmark]: Toolchain (without parser) took 4383.62 ms. Allocated memory was 138.9 MB in the beginning and 249.0 MB in the end (delta: 110.1 MB). Free memory was 99.3 MB in the beginning and 202.4 MB in the end (delta: -103.1 MB). Peak memory consumption was 7.0 MB. Max. memory is 7.1 GB. [2020-10-22 02:14:12,394 INFO L168 Benchmark]: CDTParser took 3.17 ms. Allocated memory is still 138.9 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-10-22 02:14:12,395 INFO L168 Benchmark]: CACSL2BoogieTranslator took 750.35 ms. Allocated memory was 138.9 MB in the beginning and 200.3 MB in the end (delta: 61.3 MB). Free memory was 98.2 MB in the beginning and 155.8 MB in the end (delta: -57.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. [2020-10-22 02:14:12,396 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.07 ms. Allocated memory is still 200.3 MB. Free memory was 155.8 MB in the beginning and 153.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-10-22 02:14:12,397 INFO L168 Benchmark]: Boogie Preprocessor took 34.47 ms. Allocated memory is still 200.3 MB. Free memory was 153.7 MB in the beginning and 152.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-22 02:14:12,398 INFO L168 Benchmark]: RCFGBuilder took 413.33 ms. Allocated memory is still 200.3 MB. Free memory was 152.4 MB in the beginning and 130.2 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. [2020-10-22 02:14:12,399 INFO L168 Benchmark]: TraceAbstraction took 3125.23 ms. Allocated memory was 200.3 MB in the beginning and 249.0 MB in the end (delta: 48.8 MB). Free memory was 130.2 MB in the beginning and 202.4 MB in the end (delta: -72.2 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-22 02:14:12,403 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 3.17 ms. Allocated memory is still 138.9 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 750.35 ms. Allocated memory was 138.9 MB in the beginning and 200.3 MB in the end (delta: 61.3 MB). Free memory was 98.2 MB in the beginning and 155.8 MB in the end (delta: -57.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 48.07 ms. Allocated memory is still 200.3 MB. Free memory was 155.8 MB in the beginning and 153.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 34.47 ms. Allocated memory is still 200.3 MB. Free memory was 153.7 MB in the beginning and 152.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 413.33 ms. Allocated memory is still 200.3 MB. Free memory was 152.4 MB in the beginning and 130.2 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3125.23 ms. Allocated memory was 200.3 MB in the beginning and 249.0 MB in the end (delta: 48.8 MB). Free memory was 130.2 MB in the beginning and 202.4 MB in the end (delta: -72.2 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 444 VarBasedMoverChecksPositive, 22 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 20 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.7s, 68 PlacesBefore, 22 PlacesAfterwards, 64 TransitionsBefore, 15 TransitionsAfterwards, 792 CoEnabledTransitionPairs, 6 FixpointIterations, 16 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 3 ChoiceCompositions, 67 TotalNumberOfCompositions, 1636 MoverChecksTotal - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 62 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.9s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, HoareTripleCheckerStatistics: 60 SDtfs, 27 SDslu, 46 SDs, 0 SdLazy, 33 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 37 ConstructedInterpolants, 0 QuantifiedInterpolants, 805 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...